Stuck in endless loop when installing

I'm unable to reinstall BTT. When I try, I end up in an endless loop when clicking the “Continue” button on the “BetterTouchTool Data Privacy” dialog followed by the “BetterTouchTool is now ready to use” dialog.

To uninstall, I trashed the application file, cleared the “Application Support” and “Preferences” folders, and then executed the command-line cleanup instructions on this page: - Great Tools for your Mac!

I do see these messages in the system.log file:

Sep 13 08:24:53 Trents-MacBook-Pro[1]: Coalition Cache Hit: app<> [19100]
Sep 13 08:24:53 Trents-MacBook-Pro Google Chrome Helper[82639]: Libnotify: notify_register_coalesced_registration failed with code 9 on line 2835
Sep 13 08:24:53 Trents-MacBook-Pro[1] ([69866]): Service exited due to SIGTERM | sent by BetterTouchTool[71879]
Sep 13 08:24:54 Trents-MacBook-Pro[1]: Coalition Cache Hit: app<> [19110]

I have a similar issue - it runs, but I hit an endless loop:

Followed by

And then this re-appears:

This is pretty much always some file permission problem (BTT can not write to its own data files).
Did you maybe recently restore from a Time Machine backup or rename your user account?